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Code Issues Releases Wiki Activity

domain and nameservers arguments to createfetch are now optional

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This commit is contained in:
Bob Halley
2000-01-18 02:49:03 +00:00
parent d42634d8a3
commit e8e4cccb4c
2 changed files with 52 additions and 15 deletions
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60
lib/dns/resolver.c
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@@ -1369,11 +1369,10 @@ fctx_destroy(fetchctx_t *fctx) {
isc_timer_detach(&fctx->timer);
dns_message_destroy(&fctx->rmessage);
dns_message_destroy(&fctx->qmessage);
if (dns_name_countlabels(&fctx->domain) > 0) {
if (dns_rdataset_isassociated(&fctx->nameservers))
dns_rdataset_disassociate(&fctx->nameservers);
if (dns_name_countlabels(&fctx->domain) > 0)
dns_name_free(&fctx->domain, res->mctx);
}
if (dns_rdataset_isassociated(&fctx->nameservers))
dns_rdataset_disassociate(&fctx->nameservers);
dns_name_free(&fctx->name, fctx->res->mctx);
isc_mem_put(res->mctx, fctx, sizeof *fctx);
@@ -1592,6 +1591,7 @@ fctx_create(dns_resolver_t *res, dns_name_t *name, dns_rdatatype_t type,
isc_result_t result = ISC_R_SUCCESS;
isc_result_t iresult;
isc_interval_t interval;
dns_fixedname_t qdomain;
/*
* Caller must be holding the lock for bucket number 'bucketnum'.
@@ -1608,7 +1608,38 @@ fctx_create(dns_resolver_t *res, dns_name_t *name, dns_rdatatype_t type,
goto cleanup_fetch;
dns_name_init(&fctx->domain, NULL);
dns_rdataset_init(&fctx->nameservers);
if (domain != NULL) {
if (domain == NULL) {
if (res->fwdpolicy != dns_fwdpolicy_only) {
/*
* The caller didn't supply a query domain and
* nameservers, and we're not in forward-only mode,
* so find the best nameservers to use.
*/
dns_fixedname_init(&qdomain);
result = dns_view_findzonecut(res->view, name,
dns_fixedname_name(&qdomain), 0,
0, ISC_TRUE,
&fctx->nameservers,
NULL);
if (result != ISC_R_SUCCESS)
goto cleanup_name;
result = dns_name_dup(dns_fixedname_name(&qdomain),
res->mctx, &fctx->domain);
if (result != ISC_R_SUCCESS) {
dns_rdataset_disassociate(&fctx->nameservers);
goto cleanup_name;
}
} else {
/*
* We're in forward-only mode. Set the query domain
* to ".".
*/
result = dns_name_dup(dns_rootname, res->mctx,
&fctx->domain);
if (result != ISC_R_SUCCESS)
goto cleanup_name;
}
} else {
result = dns_name_dup(domain, res->mctx, &fctx->domain);
if (result != ISC_R_SUCCESS)
goto cleanup_name;
@@ -1704,10 +1735,10 @@ fctx_create(dns_resolver_t *res, dns_name_t *name, dns_rdatatype_t type,
dns_message_destroy(&fctx->qmessage);
cleanup_domain:
if (dns_name_countlabels(&fctx->domain) > 0) {
dns_rdataset_disassociate(&fctx->nameservers);
if (dns_name_countlabels(&fctx->domain) > 0)
dns_name_free(&fctx->domain, res->mctx);
}
if (dns_rdataset_isassociated(&fctx->nameservers))
dns_rdataset_disassociate(&fctx->nameservers);
cleanup_name:
dns_name_free(&fctx->name, res->mctx);
@@ -2492,10 +2523,14 @@ noanswer_response(fetchctx_t *fctx, dns_name_t *oqname) {
fctx->attributes &= ~FCTX_ATTR_GLUING;
/*
* Set the current query domain to the referral name.
*
* XXXRTH We should check if we're in forward-only mode, and
* if so we should bail out.
*/
INSIST(dns_name_countlabels(&fctx->domain) > 0);
dns_name_free(&fctx->domain, fctx->res->mctx);
dns_rdataset_disassociate(&fctx->nameservers);
if (dns_rdataset_isassociated(&fctx->nameservers))
dns_rdataset_disassociate(&fctx->nameservers);
dns_name_init(&fctx->domain, NULL);
result = dns_name_dup(ns_name, fctx->res->mctx, &fctx->domain);
if (result != ISC_R_SUCCESS)
@@ -3761,9 +3796,12 @@ dns_resolver_createfetch(dns_resolver_t *res, dns_name_t *name,
REQUIRE(VALID_RESOLVER(res));
REQUIRE(res->frozen);
/* XXXRTH Check for meta type */
REQUIRE(DNS_RDATASET_VALID(nameservers));
if (domain != NULL) {
REQUIRE(DNS_RDATASET_VALID(nameservers));
REQUIRE(nameservers->type == dns_rdatatype_ns);
} else
REQUIRE(nameservers == NULL);
REQUIRE(forwarders == NULL);
REQUIRE(nameservers->type == dns_rdatatype_ns);
REQUIRE(!dns_rdataset_isassociated(rdataset));
REQUIRE(sigrdataset == NULL ||
!dns_rdataset_isassociated(sigrdataset));